# Relm4/Relm4

Build truly native applications with ease!

Repository: https://github.com/Relm4/Relm4
Canonical: https://ross.abutalabs.com/products/relm4
Homepage: https://relm4.org
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: gtk, gtk4, relm, elm, gui, native, rust, hacktoberfest
Last push: 2026-08-24T18:37:30+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 1914, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1945, forks 100 (observed 2026-08-28T04:05:57.729819+00:00)

## What it is
Relm4 is an idiomatic Rust GUI library inspired by the Elm architecture and built on top of gtk4-rs and GTK4/libadwaita. It provides a declarative, component-based model for building truly native cross-platform desktop applications with built-in async support.

## Use cases
- build a native desktop app in rust
- create a cross-platform gui application
- write gtk4 apps with an elm-style architecture
- build a gnome/libadwaita application in rust
- declarative ui toolkit for rust
- native gui without a web runtime

## When to choose
- you want truly native GTK4 apps in Rust with no web runtime
- you prefer the Elm model-view-update pattern for UI state
- you target Linux/GNOME primarily but also macOS and Windows
- you want strong documentation and reusable components

## When to avoid
- you need a mobile or web frontend
- you want a non-GTK look or Flutter/Qt-style widgets
- your team has no Rust experience and wants a simpler language

## Facets
- artifact type: library
- maturity: active
- function: gui, ui-components, state-management, concurrency
- domain: desktop-applications, cross-platform, web-development
- platform: windows, rust, cross-platform
- tags: gtk4, elm-architecture, libadwaita, gnome, declarative-ui, rust-gui, linux, macos, desktop

## Member repositories
- Relm4/Relm4 (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:57.729819+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:07:21.942878+00:00, confidence not recorded.
  - readme: https://github.com/Relm4/Relm4 (fetched 2026-08-28T04:05:57.729819+00:00, sha bb4837f7a3dd)
  - homepage: https://relm4.org (fetched 2026-08-29T10:46:53.908787+00:00, sha 8aa03ff2faef)
  - registry_crates: https://crates.io/api/v1/crates/relm4 (fetched 2026-08-29T10:46:53.911464+00:00, sha e3e1fb342c65)
- Data as of 2026-08-30T08:39:29.467469+00:00.